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Re: Complex find() using Oracle

Subject: Re: Complex find() using Oracle
From: Martin Radosta
Date: Thu, 18 Feb 2010 15:40:13 -0300
Check the text case in this commit for an example:

http://github.com/cakephp/cakephp1x/commit/02330b2d9c292110240c606e976e182c973897e9

let me know if that fix the problem, if not, you can prepare a test case and report the issue.



On 02/18/2010 03:21 PM, TonyFugere wrote:
I don't follow what you mean by "Try using expression for fields." Can
you clarify or give me an example?

On Feb 18, 11:12 am, Martin Radosta<martinrado...@xxxxxxxxx>  wrote:
CakePhp is not correctly parsing the alias for the decode fields, thats
why you see decode... on array keys.
Try using expression for fields. If that works, should also fix the data
missmatch.

Regards

MARTIN

On 02/18/2010 02:38 PM, TonyFugere wrote:

I've search this group and Google for a solution without any luck.
I can read (SELECT) data, but cannot change this database at all. To
get the data I run the following find:
$this->find('all',
    array(
      'fields' =>    array(
        'ServiceData.stat_date',
        'SUBSTR(ServiceData.stat_parameter,1,4) AS
"ServiceData.schema"',
        'SUBSTR(ServiceData.stat_parameter,19,2) AS
"ServiceData.state"',
        'SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), \'service1\',
ServiceData.stat_value,0)) AS "ServiceData.service1"',
        'SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), \'service2\',
ServiceData.stat_value,0)) AS "ServiceData.service2"',
        'SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), \'service3\',
ServiceData.stat_value,0)) AS "ServiceData.service3"',
        'SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), \'service4\',
ServiceData.stat_value,0)) AS "ServiceData.service4"',
        'SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), \'service5\',
ServiceData.stat_value,0)) AS "ServiceData.service5"',
        'SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), \'service6\',
ServiceData.stat_value,0)) AS "ServiceData.service6"',
        'SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), \'service7\',
ServiceData.stat_value,0)) AS "ServiceData.service7"',
        'SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), \'service8\',
ServiceData.stat_value,0)) AS "ServiceData.service8"'
      ),
      'conditions' =>    array(
        'SUBSTR(ServiceData.stat_parameter, 5, 13)' =>
'customer_lookup',
        'SUBSTR(ServiceData.stat_parameter, 1, 4)' =>    $active_schema,
        'ServiceData.stat_server LIKE' =>    'PRODUCTION%',
        'ServiceData.stat#' =>    999,
        'ServiceData.stat_date' =>    $load_date,
      ),
      'group' =>    array(
        'ServiceData.stat_date',
        'SUBSTR(ServiceData.stat_parameter,1,4)',
        'SUBSTR(ServiceData.stat_parameter,19,2)'
      ),
      'order' =>    array('SUBSTR(ServiceData.stat_parameter,19,2)')
    )
);
This is the resulting query:
SELECT
    ServiceData.stat_date
    , SUBSTR(ServiceData.stat_parameter,1,4) AS "ServiceData.schema"
    , SUBSTR(ServiceData.stat_parameter,19,2) AS "ServiceData.state"
    , SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), 'service1',
ServiceData.stat_value,0)) AS "ServiceData.service1"
    , SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), 'service2',
ServiceData.stat_value,0)) AS "ServiceData.service2"
    , SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), 'service3',
ServiceData.stat_value,0)) AS "ServiceData.service3"
    , SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), 'service4',
ServiceData.stat_value,0)) AS "ServiceData.service4"
    , SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), 'service5',
ServiceData.stat_value,0)) AS "ServiceData.service5"
    , SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), 'service6',
ServiceData.stat_value,0)) AS "ServiceData.service6"
    , SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), 'service7',
ServiceData.stat_value,0)) AS "ServiceData.service7"
    , SUM(DECODE(SUBSTR(ServiceData.stat_parameter,22), 'service8',
ServiceData.stat_value,0)) AS "ServiceData.service8"
FROM
    SERVICE_DATA ServiceData
WHERE
    SUBSTR(ServiceData.stat_parameter, 5, 13) = 'customer_lookup'
    AND SUBSTR(ServiceData.stat_parameter, 1, 4) = 'SCHEMA_A'
    AND ServiceData.stat_server LIKE 'PRODUCTION%'
    AND ServiceData.stat_number = 999
    AND ServiceData.stat_date = TO_DATE('2010-02-17 09:00:02', 'YYYY-MM-
DD HH24:MI:SS')
GROUP BY
    ServiceData.stat_date
    , SUBSTR(ServiceData.stat_parameter,1,4)
    , SUBSTR(ServiceData.stat_parameter,19,2)
ORDER BY
    SUBSTR(ServiceData.stat_parameter,19,2) ASC
This results in data returning in this form:
array(43) {
    [0]=>
    array(3) {
      ["ServiceData"]=>
      array(4) {
        ["stat_date"]=>
        string(19) "2010-02-17 09:00:02"
        ["schema"]=>
        string(4) "SCHEMA_A"
        ["state"]=>
        string(2) "()"
        ["statvalue"]=>
        string(3) "116"
      }
      ["SUM(DECODE(SUBSTR(ServiceData"]=>
      array(1) {
        ["stat_parameter,22)"]=>
        string(3) "107"
      }
      [0]=>
      array(3) {
        ["'service1'"]=>
        string(2) "40"
        ["'service2'"]=>
        string(3) "116"
        ["'service3'"]=>
        string(2) "17"
      }
    }
}
Notice the odd array keys "SUM(DECODE(SUBSTR(ServiceData" and
"'service1'" (this is the decode value in single ticks). Also the
value to service1 is the value that belongs in service2, service2 has
the value for service5, and service3 has the value for service8???
If I remove the SUM(DECODE(SUBSTR( fields, then everything works as
expected:
array(43) {
    [0]=>
    array(1) {
      ["ServiceData"]=>
      array(3) {
        ["stat_date"]=>
        string(19) "2010-02-17 09:00:02"
        ["schema"]=>
        string(4) "SCHEMA_A"
        ["state"]=>
        string(2) "()"
      }
    }
}
I have tried the afterFind solution posted by TekNoid, but it did not
work.
http://teknoid.wordpress.com/2008/09/29/dealing-with-calculated-field...
Any hints or ideas on how I can overcome the issues of having such a
complex SUM DECODE of a SUBSTR?
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